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Here we go again threads.net/@jonkuperman

Excited to announce that TC39 is forming a new Task Group to improve source maps. Littledan and I will be convening Ecma TC39-TG4 to improve expressiveness, performance, and adoption across the ecosystem! DM me to get involved! GitHub issues here: github.com/source-map/sou…

Me for the next year:

TC39 has formed a new Task Group to standardize Source Maps. Source Maps are a file format used for debugging and post-hoc analysis of JavaScript and other languages. The convenors of TC39-TG4 are Jon Kuperman and Littledan.

Bloomberg is pleased to support TC39-TG4, a new task group devoted to source maps, a key element in #JavaScript, #CSS & #WebAssembly debugging. TG4 will work to improve the debugging experience and to drive the adoption of a source map standard. ecma-international.org/news/ecma-tc39…

At tonight's HelsinkiJS June 2024 #meetup -- which is also a TC39 Community Event -- software engineer Jon Kuperman, one of the convenors of TC39-TG4, will be discussing "The Future of Source Maps" (18:00 EEST) bloom.bg/3yND1Cp #JS #JavaScript #sourcemaps

We had a great event at Maria 01 last night with speakers from TC39. Thanks to Eemeli Aro for putting the program together, Ujjwal Sharma, Michael Ficarra & Jon Kuperman for the talks and Otto Hilska from Swarmia for sponsoring!

"The Future of Source Maps" by Jonathan Kuperman Jon Kuperman youtu.be/dre3gPQlYvg?li…

ECMAScript explanations 😉 🎬 Jon Kuperman from Tech At Bloomberg gives a talk (29 mins) on "The Future of Source Maps" at Web Engines Hackfest in A Coruña, Spain. Jon is one of the convenors of TC39 Task Group 4 that is standardizing source maps. youtu.be/dre3gPQlYvg

TypeScript excitement 😉 Today TS 5.5 ships Isolated Declarations 🎉 An epic collab between Tech At Bloomberg Google TypeScript to enhance .d.ts emit & unlock performance 🔥 Thanks to Titian Cernicova-Dragomir 💙💛 Hana Joo Thomas Chetwin Jan Kühle Lisa Velden Jake Bailey Wesley Wigham 👍

Our own Firefox Debugger team member bomsy is there too. Exciting to see how we can make Source Map better for easier debugging

JavaScript infrastructure is almost like irl infrastructure: it takes a TON of work, by an massive workforce, working together for some definition of the greater good, mostly thankless And we drive on the roads and bridges everyday being shitty about it all

Made a fun thing with Cloudflare tech daily.jonkuperman.com

Landed a set of Node.js APIs that aim to be a built-in alternative to v8-compile-cache & v8-compile-cache-lib with better performance and ESM support. github.com/nodejs/node/pu… Some early testing by Jake Bailey showed that it can make tsc load ~2.3x faster 🚀

Today, I'm releasing a TypeScript compiler called ts-blank-space 🎈 We use this at Tech At Bloomberg to perform type-stripping on a modern subset of TypeScript. It's written in TypeScript and is fast because it uses whitespace to enable work-skipping. bloomberg.github.io/ts-blank-space

TypeScript excitement 😉 Congrats to Ashley Claymore on releasing a brand new type-stripping compiler: ts-blank-space ✨ ⚡️ 5.6x faster than tsc due to zero-codegen 🔷 Written in TS 💯 Uses the official TS parser 🎯 Accurate/preserved source locations 💪 Battle-tested in production

Yosuke has kicked off tonight's TC39 x JSConf.jp event 🎉 Many TC39 delegates are attending and presenting. First up is Jon Kuperman telling us about the future of source maps ✨

ECMAScript gratitude 😉 Thank you to Sony Interactive Entertainment for hosting TC39 in Tokyo this week. Especially to lead organiser Riki and TC39 delegate Ross Kirsling 🙏 The productive meeting had artwork, TC39-branded swag, and many thoughtful touches. I hope we return 👍

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ECMAScript excitement 😉 Congrats to TC39-TG4 Nicolò Ribaudo 🏳️‍🌈🇪🇺 Jon Kuperman Asumu Takikawa on the approval of the brand new Source Map Format standard at the Ecma International General Assembly 🎉 ECMA-426 specifies and clarifies the behavior of source maps used for JavaScript and other languages.